How to get parameters from a URL string?

Question

I have a HTML form field $_POST[\"url\"] having some URL strings as the value. Example values are:

https://example.com/test/1234?email=xyz@test.com
         


        

Answer 1

To get parameters from URL string, I used following function.

var getUrlParameter = function getUrlParameter(sParam) {
    var sPageURL = decodeURIComponent(window.location.search.substring(1)),
        sURLVariables = sPageURL.split('&'),
        sParameterName,
        i;

    for (i = 0; i < sURLVariables.length; i++) {
        sParameterName = sURLVariables[i].split('=');

        if (sParameterName[0] === sParam) {
            return sParameterName[1] === undefined ? true : sParameterName[1];
        }
    }
};
var email = getUrlParameter('email');

If there are many URL strings, then you can use loop to get parameter 'email' from all those URL strings and store them in array.

Answer 2

$uri = $_SERVER["REQUEST_URI"];
$uriArray = explode('/', $uri);
$page_url = $uriArray[1];
$page_url2 = $uriArray[2];
echo $page_url; <- see the value

This is working great for me using php

Answer 3

As mentioned in other answer, best solution is using

parse_url()

You need to use combination of parse_url() and parse_str().

The parse_url() parse URL and return its components that you can get query string using query key. Then you should use parse_str() that parse query string and return values into variable.

$url = "https://example.com/test/1234?basic=2&email=xyz2@test.com";
parse_str(parse_url($url)['query'], $params);
echo $params['email']; // xyz2@test.com

---

Also you can do this work using regex.

preg_match()

You can use preg_match() to get specific value of query string from URL.

preg_match("/&?email=([^&]+)/", $url, $matches);
echo $matches[1]; // xyz2@test.com

preg_replace()

Also you can use preg_replace() to do this work in one line!

$email = preg_replace("/^https?:\/\/.*\?.*email=([^&]+).*$/", "$1", $url);
// xyz2@test.com

Answer 4

All the parameters after ? can be accessed using $_GET array. So,

echo $_GET['email'];

will extract the emails from urls.

Answer 5

Use the parse_url() and parse_str() methods. parse_url() will parse a URL string into an associative array of its parts. Since you only want a single part of the URL, you can use a shortcut to return a string value with just the part you want. Next, parse_str() will create variables for each of the parameters in the query string. I don't like polluting the current context, so providing a second parameter puts all the variables into an associative array.

$url = "https://mysite.com/test/1234?email=xyz4@test.com&testin=123";
$query_str = parse_url($url, PHP_URL_QUERY);
parse_str($query_str, $query_params);
print_r($query_params);

//Output: Array ( [email] => xyz4@test.com [testin] => 123 ) 

Answer 6

You can use the parse_url() and parse_str() for that.

$parts = parse_url($url);
parse_str($parts['query'], $query);
echo $query['email'];

If you want to get the $url dynamically with PHP, take a look at this question:

Get the full URL in PHP